and Pseudocephalus arietinus. cxxxvii 



the group Stenelytra, approved as it has been by philosophically-inductive minds, and 

 adopted by industrious and careful compilers, is essentially so heterogeneous in its 

 composition as to be unworthy of adoption : such an assertion would not only be ex- 

 cessively presumptuous on my part, but also premature, since my acquaintance with 

 the group is very imperfect, and I have never considered it with sufficient deliberation 

 and care to warrant me in proposing any alteration. 



Edward Newman. 



Art. XXII. — Characters of a Second Species of Pseudocephalus, a Longicom Insect 

 from New Holland. By Edward Newman. 



Natural Order — Cerambycites. 



Family— ( ? ) 



Genus — Pseudocephalus, Newman. 



The genus Pseudocephalus was established in the 22nd No. of the 'Entomologist' 

 (Entom. 353), in a descriptive list of longicorns collected at Port Philip, by Mr. E. T. 

 Higgins : one species only is described, P. formicides, remarkable for the extreme si- 

 milarity of its enormously developed head and curiously geniculated antenna;, to some 

 of the ant tribe ; and I have now the pleasure of adding a second. I will not venture 

 an opinion as to the natural place of these insects among the longicom Coleoptera, 

 but merely observe that in their completely exserted head, round eyes, and greatly re- 

 stricted prothorax, they resemble the Lepturidse. 



Pseudocephalus arietinus. 



Nigricans, an tennis, femoribus basi, tibiis, tarsisque late testaceis : elytra Arietis signo 

 retrorsum spectanti albido ornata. (Corp. long. '25 unc. Elytrorum lat. max. 

 •065 unc.) 



Head dull black, minutely punctured, longitudinally depressed between the eyes ; 

 antennae and mouth bright testaceous : prothorax dull black, minutely punctured, 

 longer than the head, greatly restricted anteriorly, and there much narrower than the 

 head in the middle, produced on each side into a strong tooth, and behind this again 

 restricted : scutellum black : elytra much broader than the base of the prothorax, 

 square at the humeral angles, depressed dorsally, rounded at the apex and completely 

 covering the abdomen, the costal margins slightly incurved, so that they are narrower 

 across the centre than either at the base or below the centre, dull black, minutely and 

 confluently punctured, the minute size and close proximity of the punctures giving the 

 elytra a silky appearance, this appearance is probably enhanced by the presence of a 

 close, very short, velvety pile ; on each elytron is a median transverse narrow yellow- 

 white fascia, which originates in the costal margin, and after proceeding some distance 

 in a nearly direct line towards the suture, curves gradually upwards and finally unites 



